Metal type stop motion attachment for looms



Octv. 22, 1946. J, F, KOSKELA 2,409,766

METAL TYPE STOP MOTION ATTACHMENT FOR LooMs Filed May 28,. 1945 2 Sheets-sheet 1 .IW-IHIll-l 1 Il-Ili-IH ,IEM-mlmlm-Mln Inventar Johns fflwias'lav .g 5 `By 06f. 22, 1946. J, F KOSKELA- 2,409,766

l METAL TYPE STOP MOTION ATTACHMENT FOR LOOMS Filed May 28, 1945 sheets-sheet 2 Inventor MyW Patented Oct. 22, 1946 UNITED STATES PATENT oFfElcE METALTYPE s'rorI Mo'is'IoN ATTACHMENT Fon LooMs Jonas F. Koskela, Maynard, Mass;

Application May 28, 1945, SeriaLNo. 596,197.

4 Claims. 1`

This invention relates to a new and improved contrivanca in the form' of a quick-applicable and, removable attachment for looms, and the purpose thereof is to provide a new styled adjustable metal-type stop motion device for stopping a loom when a harness wire or strap breaks.

By way of introduction, it isto be pointed out that the instant invention is essentially and primarily an improvementupon a similar stop motionv attachment constitutingy the subject matter 0i myA U. S. Patent 2,348,824` gran-ted to me under date of May 16., 1944. In order to better appreciate the nature of the invention it isl thought advisable, at thispoint, to. describebroadly and Specifically the attachment referredto as the subject matter of Paten-t No.E 2,348,824.

Broadly-y the aforementioned prior attachment is. characterizedy by anI adapter for,` connection with. a conventional: loom frame;y an inclined; wire carried by said adapter,I and a` current conducting element whichl is connected with the Wire and also connected with the electric stop motion constituting a conventional part of the loom.

More specifically, the attachment in my copending application Serial No. 483,317 is an automatically operable circuit make and break device which is characterized by an inclined wire rod or member adapted to underlie a bank of par allel correspondingly inclined harness wires, there being adapter means for supporting this Wire element or rod on a predetermined part of the conventional loom frame, and further, a current conductor electrically connected with the wire and adapted to be connected to a suitable part of the conventional loom stop'mechanisrn. The adapter is in the form of a wooden or equivalent bar which is adapted to be removably mounted between the parallel frame bars of the loom, this having V-shaped notches to facilitate application and maintenance in place, and the wire member is mounted thereon.

For reasons discovered from trial and error I have found it possible and expedient to revise and renne the construction which is the construction of the present application, this being in the form of a coiled circuit make and break Wire element mounted through themedium of insulators on an inclined adapter rod, which rod is adjustably mounted on one of the loom frame bars.

Other features and advantages will become more readily apparent from the following description and the accompanying illustrative drawings.

In the drawings, wherein like numerals are employed to designate like partis throughout the same:

Figure. l is a side elevational view of a loom including a frame, harness, harness wires, pulleys for the harness wires and theusual conventional jack structure.

Figure 2 isA a view, enlarged in scale., on the plane of the line 2 -2 oi Figure 1 looking in the direction of the arIOViIav FigurejS is a top. plan view which, includes the wiringchagrins,V the. latter embodying conventenal. or existing type loom. parts.,

Figure 4Y is a` fragmentary view partly in section and partly in elevation to bring out the speciflc structural details.

Figure 5V is a section on the line 51-5` of Figure 4 Figure 6 is a detail of the le'ft hand` end portion of the structure seen in Figure 4, this detailing the anchoring loop.

The channel-shaped loom frame bars A of the loom B have disposed thereabove the inclined bank of harness wire C, the latter being connected to the regular jack structure D and passing down over the pulleys E on the frame and being attached to the harness F. These are all conventional parts.

The novel and improved attachment is denoted by the numeral 6 and this comprises an` adapter in the form of a bendable metal rod 1. This is inclined and formed at its lower or left-hand end with a loop 8 adjustably secured by a bolt and nut fastener 9 to the adjacent web of the correspondingly adjacent frame bar A. This adapter is provided at opposite ends with insulators I0 and Il.

The circuit make and break wire element, in this set-up is denoted by the numeral I2. This is a coiled spring having the right-hand coil anchored on the insulator Il and the opposite coils tightened about the remaining insulator l0 as indicated at the point I3. The free end of the wire is provided with a binding post I4.

The parts 1 and l2 underlie the wires C and the circuit is closed in the same manner as disclosed in my co-pending application Serial No. 483,317.

It -is perhaps desirable to explain that the socalled wiring diagram in Figure 3 embodies conventional parts of a well-known C and K electric warp stop motion. In this assemblage We observe a regular drop wire bar l5 which cornprises an outer steel sheath I6 and an insulated inner member I1, and core member I8 extending beyond one end of the sheath. A cable of insulated wire I9 is connected with the aforesaid binding post I4 and includes an extension wire 20 which connects with a binding post 2l on the extended end of the core member I8. The sheath IG is suitably grounded as at 22, that is, grounded to the loom frame. In this arrangement when the hairpin-like dropwire (not shown) has fallen and has acted as a switch to close the electrical circuit, the solenoid 23 in the knockoi box (not shown) is automatically energized and comes into play, stopping the loom in the conventional manner. The numeral 24 designates a hand switch, 25 a battery and 26 the ground. When the switch 244 is closed the circuit is ready for operation. Therefore, should any one of the wires C get loose and fall down on the coiled member I2 this closes the circuit and stops the loom.,

The loop and bolt arrangement for the adapter member 6 permits the entire attachment to be raised and lowered in respect to the frame bar A and the overlying harness wires C. The rod member 'I is suiiiciently flexible to permit it to .be bent to vary the angularity to better place said part beneath the wires C. Using the coils or convolutions in the circuit make and break wire I2 renders the same more effective in tripping and catching the falling wires C.

The attachment may be used singly or in pairs, as desired. It is located on the top of the loom away from dust and lint and has but a single simple slanting wire arrangement to accomplish the desired purposes. I have not attempted to stress the wiring arrangement since it is merely shown to assist in generally understanding the operation of the invention. The invention is the attachment and the attachment comprises the adaptenmeans for adjustably mounting it in place, the insulators and the coiled wire I2 attached to the insulators and surrounding the rod or wire member T.

It is thought that persons skilled in the art to which the invention relates will be able to obtain a clear understanding of the invention CTI 4 after considering the description in connection with the drawings. Therefore, a more lengthy description is regarded as unnecessary.

Minor changes in the shape, size and arrangement of details coming within the eld of invention claimed may be resorted to in actual practice, if desired.

Having described the invention, what is claimed as new is:

l. An attachment of the class described comprising a longitudinally coiled circuit make and break wire adapted to underlie a bank of overhead harness wires, and an adapter and supporting element for attaching said wire to a predetermined part of the loom frame.

2. An attachment for looms comprising an adapter including a longitudinally elongated limb having an attaching loop at one end for adjustable connection With an adjacent loom frame bar, and a convolved circuit closing wire surrounding said limb in the manner and for the purposes described.

3. An attachment of the class described comprising an adapter including an inclined longitudinally elongated limb having means at one end for adjustable mounting on a loom frame bar, insulators mounted at opposite ends of said limb, and a coiled wire surrounding the limb and having its end-coils Wound about and attached to said insulators.

4. A loom attachment of the class described comprising an adapter unit, said unit comprising a bendable wire rod having insulators at opposite ends, one end of said rod being bent laterally and formed into a frame attaching loop, insulators mounted on the wire rod adjacent opposite ends of said rod, and a coiled circuit make and break wire coiled around said rod and having its end coils embracing the insulators, one end of said Wire being adapted for connection with a circuit conductor.

JONAS F. KOSKELA. 

